Deprecate TDTObjectOrDefault
Add CHANGELOG entry
Merge remote-tracking branch 'origin/master' into deprecate-object-or-default

Conflicts:
	CHANGELOG.md
Disable deprecation related warnings in our test suite
Merge remote-tracking branch 'origin/master' into deprecate-object-or-default

Conflicts:
	CHANGELOG.md
Merge pull request #50 from talk-to/deprecate-object-or-default

Deprecate TDTObjectOrDefault